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1) Wide range of applications: This polyurethane material has a wide range of uses； It is suitable for quick repairs, and its wear resistance is far superior to that of other elastomeric materials. These repair materials are in liquid form and come in canned or other packaging types suitable for use on-site. Products with elastic properties, such as rubber, polyurethane linings, conveyor belts, rollers, and the insulating layers of idler rollers, can be repaired when they suffer from damage such as abrasion grooves, extensive wear, scratches, or tears. The surface of the repaired area can be polished to match the original surface, ensuring a seamless integration. Polyurethane spray products are non-corrosive to the steel wire belt core layer, and the repair material can bond seamlessly with the surface to be repaired, which effectively protects the steel wire belt core layer and provides a solid foundation for extending the service life of the conveyor belt. It also possesses characteristics such as aging resistance and high insulation strength. 2) Wear resistance, corrosion resistance ； It can withstand erosion by acids, alkalis, oils, water, and other media with a pH range of 3–11. The relative weight loss after 7 hours of grinding with a grinder operating at 1725 rpm using cement mortar is as follows: Weight loss of material – Polyurethane: 8; Ultra-high molecular weight polyethylene: 21; Natural rubber: 55; Wear-resistant steel: 62; 304 stainless steel: 80; Neoprene: 800. The wear resistance of polyurethane is about 6 times that of the best-quality rubbers, and its wear-resistant properties meet the requirements for protecting the working surface of conveyor belts; it can be used for over 24 months. 3) Excellent adhesion: (Different adhesives are used depending on the substrate; there is an appropriate adhesive for all metal and non-metal substrates). It has self-leveling properties and does not cause any sagging, ensuring that the repaired surface remains completely flat and free from delamination. This feature enables the spraying process to be carried out using a \"online conveyor operation method that does not require removing the conveyor components\", thus providing a solid foundation for the rapid resumption of conveyor operation without disrupting production. 4) Easy to apply: This polyurethane product is simple to apply, can be used at room temperature, is not sensitive to humidity or temperature, and causes no pollution. Uses a complete set of equipment, making construction convenient and highly efficient ； The design thickness requirement can be achieved in a single construction step. 5) Fast curing speed: As it contains no catalyst, it can be sprayed and shaped on any curved, inclined, or vertical surface. After curing, it exhibits high toughness and elasticity; the setting time is short, and the surface sprayed with this material achieves the strength necessary for walking on it within just a few dozen minutes. At room temperature, the coating cures after two hours, after which the repaired area can be put back into normal use. It does not affect the sprayed surface. The repaired conveyor belt significantly reduces the time and frequency required for equipment maintenance, improves the operational efficiency of the equipment, and lowers production costs